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Agricultural productivity

2009-03-01

Impacts of the Productive Safety Net Program on livestock and tree holdings of rural households in Ethiopia

In this paper, we study the Productive Safety Net Program (PSNP) in Ethiopia in order to see how it has affected households’ investment and disinvestment in productive assets. The PSNP is the largest currently operating social protection program in sub-Saharan Africa outside of South Africa, and its impacts and effectiveness are therefore important both in their own right and because they have implications for similar but smaller programs elsewhere.

2008-10-31

Fast Track Land Reform and Agricultural Productivity in Zimbabwe

The author investigated the Zimbabwean Fast Track Land Reform Program’s (FTLRP) impact on the agricultural productivity of its beneficiaries. The data revealed significant differences between beneficiaries and a control group of communal farmers in household and parcel characteristics and input usage.

2008-10-14

Estimation of the aggregate agricultural supply response in Zimbabwe: The ARDL approach to cointegration

This paper uses relatively recent time series techniques on data spanning over different pricing regimes to estimate the aggregate agricultural supply response to price and non-price factors in Zimbabwe. The ARDL approach to cointegration employed here gives consistent estimates of supply response in the presence of regressor endogeneity and also permits the estimation of distinct estimates of both long-run and short-run elasticities when variables are not integrated of the same order.

2008-06-19

Determinants of Soil Capital

Explaining soil capital facilitates a better understanding of constraints and opportunities for increased agricultural production and reduced land degradation. The diversity in farmers’ soil capital, production strategies, and general farming systems (including conservation investments) points to the value of internalizing these aspects in the formulation of the government’s policies and extension advice on sustainable agriculture.

2008-06-19

Production Function Analysis of Soil Properties and Soil Conservation Investments in Tropical Agriculture

This paper integrates traditional economic variables, soil properties, and variables on soil conservation technologies to estimate agricultural output among small-scale farmers in Kenya’s central highlands. The study finds that integrating traditional economics and soil science is invaluable, especially as omitting measures of soil capital can cause omitted-variable bias. The central policy implication is that while fertilizers are generally beneficial, their application is a complex art, and more is not necessarily better.

2008-06-03

Fast Track Land Reform, Tenure Security, and Investments in Zimbabwe

There is evidence that the Fast Track Land Reform Program created insecurity among its beneficiaries and adversely impacted investments in soil conservation. However, households in the study that believed investing in land enhanced tenure security invested significantly more in soil conservation measures than other households.

2008-04-08

Market Imperfections and Farm Technology Adoption Decisions: A Case Study from the Highlands of Ethiopia

This examination of the impacts of market and institutional imperfections on technology adoption found that Ethiopian farmers’ decisions to adopt fertilizer significantly and negatively depended on whether they also adopted soil conservation, but not vice versa. Market imperfections were significant factors in explaining variations in decisions to adopt farm technology, such that relieving market imperfections could increase adoption of farm technologies.

2007-03-01

Sharecropping Efficiency in Ethiopia: Threats of Eviction and Kinship

We tested a theoretical model with the Marshallian inefficiency (H1) and threat of eviction (H2) hypotheses having opposite effects on land productivity on sharecropped plots. The model also assumes that kinship contracts may eliminate or reduce the Marshallian inefficiency (H3) and threat of eviction (H4) effects on land productivity.

2005-01-01

Assessing linkages between agriculture and biodiversity in Central America: Historical overview and future perspectives

The objective of this report is to explore the impact of agriculture on biodiversity conservation in Central America, identify the factors which perpetuate or exacerbate agricultural systems or management practices that adversely impact biodiversity conservation, and examine different strategies and approaches that could be used to potentially mitigate some of the negative impacts of agriculture on biodiversity conservation, either by making the agricultural systems more compatible with biodiversity conservation, or by removing the stimuli for agricultural expansion into remaining natural areas or unsustainable agricultural practices.

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